html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

html {
    position: relative;
    min-height: 100%;
}

body {
    width: 100%;
}

.txt blockquote {
    padding: 10px 15px 1px 15px;
    border-left: 3px solid #ccc;
}

.txt img {
    display: block;
    margin: 0 auto;
}

.txt pre {
    margin: 0 0 10px;
    font-size: 13px;
    word-break: break-all;
    word-wrap: break-word;
    background-color: #f5f5f5;
    border-radius: 4px;
}